Noctua NH-U12A chromax.Black, vs Thermalright Peerless Assassin 120 SE V2 CPU
Updated August 2026 — Noctua NH-U12A chromax.Black, wins on warranty and design, Thermalright Peerless Assassin 120 SE V2 CPU wins on compatibility.
The Noctua NH-U12A chromax.Black offers superior performance and quieter operation, while the Thermalright Peerless Assassin 120 SE V2 is a budget-friendly alternative. Choose based on your performance needs and budget.
Why Noctua NH-U12A chromax.Black, is better
Performance
Top-tier cooling efficiency
Noise
Whisper-quiet operation
Brand
Renowned for quality
Why Thermalright Peerless Assassin 120 SE V2 CPU is better
Price
Significantly cheaper
Design
Dual tower structure
Compatibility
Supports multiple platforms
Overall score
Specifications
| Spec | Noctua NH-U12A chromax.Black, | Thermalright Peerless Assassin 120 SE V2 CPU |
|---|---|---|
| Cooling Type | Air | Air |
| Socket Support | Intel/AMD | Intel/AMD |
| Max RPM | 1500 | 1850 |
| Noise Level | 25 dBA | 29.5 dBA |
| Warranty | 6 years | 3 years |
Dimension comparison
Price Comparison
The Noctua NH-U12A chromax.Black is priced at $134.95, while the Thermalright Peerless Assassin 120 SE V2 is available for a much lower price of $38.99. This makes the Thermalright cooler approximately 72% cheaper than the Noctua model. Price is often a significant factor for consumers, especially those building gaming rigs or high-performance PCs on a budget. While the Noctua unit is more expensive, it is known for premium performance and quality, which could justify the higher price for serious enthusiasts.
Design and Build Quality
In terms of design, the Noctua NH-U12A chromax.Black features an all-black aesthetic that fits well with various color schemes, appealing to users focused on aesthetics. It is a 120mm single-tower cooler, designed to fit most tower cases without blocking RAM slots or PCIe slots on ATX and Micro-ATX motherboards. On the other hand, the Thermalright Peerless Assassin 120 SE V2 boasts a dual tower design with six heat pipes, aimed at enhancing heat dissipation further. This dual tower structure might provide better cooling efficiency under load, especially for high-performance tasks.
Cooling Performance
The Noctua NH-U12A chromax.Black is praised for its top-tier performance despite its compact size, providing excellent cooling while remaining whisper-quiet during idle. It includes dual NF-A12x25 120mm fans that allow for PWM automatic speed control. In contrast, the Thermalright Peerless Assassin 120 SE V2 features dual 120mm PWM fans with a maximum speed of 1850 RPM, which helps balance airflow and cooling performance across varying workloads. The dual tower design further enhances its cooling capabilities, making it a strong contender for users experiencing high loads during gaming or multitasking.
Compatibility
Compatibility is crucial when choosing a CPU cooler. The Noctua NH-U12A chromax.Black supports a variety of Intel and AMD sockets, including LGA1851, LGA1700, LGA1200, LGA115x, and AMD AM4 & AM5. This widespread compatibility makes it a versatile choice for many systems. Conversely, the Thermalright Peerless Assassin 120 SE V2 also supports AMD AM4, AM5, and Intel LGA1851 and LGA1700 platforms. Both coolers cater well to current mainstream desktop builds, ensuring that users can upgrade easily without worrying about socket mismatches.
Installation Process
The installation process can significantly affect user experience. The Noctua NH-U12A chromax.Black includes the SecuFirm2 mounting system designed for easy installation on compatible sockets. This system is well-regarded for its reliability and ease of use. On the flip side, while the Thermalright Peerless Assassin 120 SE V2 does not specify its mounting system, its compatibility with various sockets suggests that installation should be straightforward as well. However, detailed user experiences may vary, and those less experienced may find the Noctua's mounting system particularly user-friendly.
Noise Levels
Noise levels are an essential consideration for many users, especially those who prefer a quieter computing environment. The Noctua NH-U12A chromax.Black is designed to be whisper-quiet at idle, thanks to its advanced fan technology and PWM controls. This makes it an excellent choice for users who prioritize a silent setup. The Thermalright Peerless Assassin 120 SE V2 has a maximum noise level of 29.5 dBA, which is relatively quiet but may not match the ultra-quiet operation of the Noctua model. For users sensitive to noise, the Noctua may offer a more appealing option.
Brand Reputation
Brand reputation can play a significant role in the purchasing decision. Noctua is renowned for its high-quality cooling solutions, backed by numerous awards and recommendations from hardware websites. The Noctua NH-U12A chromax.Black reflects this legacy, appealing to users seeking performance and reliability. Thermalright, while a reputable brand, may not have the same level of recognition as Noctua in the enthusiast community. However, the Peerless Assassin 120 SE V2 presents a compelling case as a budget-friendly alternative, potentially attracting users looking for value without sacrificing too much performance.
Which should you buy?
Choosing between the Noctua NH-U12A chromax.Black and the Thermalright Peerless Assassin 120 SE V2 largely depends on your specific needs and budget. If you prioritize premium performance, aesthetic design, and a quiet operation, and are willing to spend about $134.95, the Noctua cooler is an excellent choice. However, if you're looking for a more budget-friendly option that still offers solid cooling performance for about $38.99, the Thermalright cooler is an impressive alternative. Ultimately, both coolers have their strengths, making the decision dependent on whether you value high-end features or cost-effectiveness more.

